Before engaging in detailed analysis regarding the project’s research questions, we will first run general frequencies of SDPD stops to get a sense of overall trends. This helps us determine if our expected findings are likely to show up in the data and allows us to identify any trends we did not expect. The analysis will include:

General counts and percents of SDPD stops by key fields in RIPA data, e.g., stop reason, stop result, calls for service, race, age, searches, officer assignment.

General counts and percents of stops by Gang Suppression Unit and Special Operations Unit (if available) by key fields in RIPA data, e.g., stop reason, stop result, calls for service, race, age, searches.

Quick map of stop counts by police beat and for Gang Suppression Unit/Special Operations Unit.

–combine all tables by ‘all units’ + ‘just gang suppression unit’

Calls for Service versus Officer-initiated

Analysis cut by all unit types:

Stop Counts and Rates by Response to Service Call for All Units

Year

Assignment

Call for Service

Total

Count

Percent

Average Stop Time (Mins)

Median Stop Time (Mins)

Min Stop Time (Mins)

Max Stop Time (Mins)

Total Time (Mins)

2022

All units

No

86,632

79,416

91.7

27.4

10.0

1

1,440

2,173,760

2022

All units

Yes

86,632

7,216

8.3

59.3

30.0

1

1,220

428,183

Analysis filtered for gang suppression unit:

Stop Counts and Rates by Response to Service Call for Gang Suppression Unit

Year

Assignment

Call for Service

Total

Count

Percent

Average Stop Time (Mins)

Median Stop Time (Mins)

Min Stop Time (Mins)

Max Stop Time (Mins)

Total Time (Mins)

2022

Gang enforcement

No

420

397

94.5

29.3

15

1

300

11,613

2022

Gang enforcement

Yes

420

23

5.5

123.9

120

20

260

2,850

Total Officer-Intiated Stops Over Time

Total Count of Officer-Initiated Stops Over Time

Year

All Units Total

Gang Suppression Unit Total

2018

69,766

1,501

2019

142,663

3,263

2020

116,754

1,592

2021

104,561

643

2022

79,416

397

2023

21,578

95

Total Officer-Intiated Stops in 2022

Total and Rate of Stops by Patrol Assignment Type in 2022

Year

Patrol Assignment

Total

Count

Percent

2022

Patrol, traffic enforcement, field operations

79,416

77,386

97.4

2022

Other

79,416

1,121

1.4

2022

Gang enforcement

79,416

397

0.5

2022

Investigative/detective

79,416

304

0.4

2022

Narcotics/vice

79,416

108

0.1

2022

Special events

79,416

45

0.1

2022

K1-12 public school inlcuding school resource officer or school police officer

79,416

43

0.1

2022

Task force

79,416

10

0.0

2022

Compliance check

79,416

2

0.0

Stop Reason and Rersults

Stops by stop reason —officer-initiated filtered (from here on out)

## 
##      1 
## 701063
Total and Rate of Stops by Stop Reason

Reason for stop

Total

Count

Percent

Reasonable Suspicion

679,019

337,579

49.7

Traffic Violation

679,019

310,160

45.7

Investigation to determine whether the person was truant

679,019

8,966

1.3

Known to be on Parole / Probation / PRCS / Mandatory Supervision

679,019

7,705

1.1

Knowledge of outstanding arrest warrant/wanted person

679,019

7,396

1.1

Consensual Encounter resulting in a search

679,019

7,170

1.1

Determine whether the student violated school policy

679,019

36

0.0

Possible conduct warranting discipline under Education Code sections 48900, 48900.2, 48900.3, 48900.4 and 48900.7

679,019

7

0.0

Stops by stop result

Hit Rates

Demographics of Stops

Stops by age

Stops by race

Map